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A J. B. SHERMAN & L. D, PHELPS.

Lathe for Turning Small Wooden Articles. b No. $429935. Paievnted J4me14, 1&8].

4 shets-snet J. B. SHERMAN 85 L. D. PHELPS.- Lathe for Turning SmallWooden Articles.

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, No. 242,993. Patented .Iun e 14.1881.

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N. KTERS. Pmlwmhu u mr, Washington. D. c.

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J. B. SHERMAN 82: L. D. PHELPS. Lathe for Turning Small wooden Artioles.No.'242,9 93.

Patented June 14,1881.

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Lathe for Turning Small Wooden Articles.

1;; venjor Patented June 14.1881.

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UNITED STATES PATENT OFFICE.

JAMES B. SHERMAN, OF WATERLOO, AND LOREN D. PHELPS, OF BOLTON TOWNSHIP,COUNTY OF BROME,

QUEBEC, CANADA; SAID SHERMAN ASSIGNOR 'TO COBTEZ C. ELDRIDGE, OFWATERLOO, QUEBEC, CANADA.

LATHE FOR TURNING SMAL'L WOODEN ARTICLES.

SPECIFICATION forming part of Letters Patent No. 242,993, dated June 14,1881.

Application filed September 16, 1880. (No model.)

To all whom tt may concern:

Be it known that we, JAMES B. SHERMAN, of the village of Waterloo, andLOREN'D. PHELPS, of the township of Bolton, in the 5 county of Brome,and in the Province of Quebec, Canada, have invented certain new anduseful Improvements in Lathes forv Turning Small VVoodeu Articles; andwe do hereby declarethat the following is a full, clear, and

10 exact description thereof, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon, making a partof this specification.

This invention relates to an improved com- I 5 pound lathe for turningclothes-pins, pail-handles, spools, bobbins, and other similar articles,wherein the blank is automatically fed to revolving spindles, thenoperated upon by cutting-tools, and discharged from the ma- 2o chine bythe operation of suitable mechanical devices; and the improvementconsists, primarily, in a revolving shaft supported in bear-' ings upontheframe of the machine; and in securing to the said shaft a pair offrames pro- 2 5 vided with hearings in which three sets of spindles aresupported and revolved, and also revolved with the said shaft andframes, each of the sets of spindles having an endwise'md dles,adjusting the shafts, and operating the saw, as will behereinafter morefully described and specifically pointed out.

5 In the drawings, Figure 1 represents a front elevation of the lathe;Fig.2, a sectional view through the line w as of Fig. 1; Fig.3, asectional view through the line yy of Fig. 1 Fig. 4, a sectional viewthroughthe line a z of Fig.

1. Fig. 5 is a section showing the friction- 5 roller, guide-blockframe, and spindle of the revolvinglathe-shaft; Fig. 6, a sectionalelevation through the driving-pulleys in theline w w of Fig. 1; Fig. 7,a plan View, showing the saw and feed mechanism secured to the 5 frame,with the other parts of-the machine removed; and Fig. 8, a view indetail of the mechanism for moving the spindles longitudinally.

Referring to the drawings, the letter A in- 6 dicates a power-pulley,mounted 011 a shaft, 60, and having a rigid friction wheel, A, whichoperates in conjunction with a friction-wheel, B, mounted rigidly on ashaft, B, which extends from one end of the framers to the other. 6

The letter 00 indicates the longitudinal plates of the frame, whichframe has cross-bars, in which are hung the short shafts, as shown.

Upon the shaft B are rigidly secured the double three-armed frames F Fand S S, in 7 which are freely journaled the ends of two sets ofspindles, E and S, arranged in axial line with each other, each of whichrevolves with the shaft B, and may be revolved in their bearings at aspeed greater than thatiof the 73 shaft B, as will hereinafter appear. Athird frame, F, is also secured to the shaft B, and

is provided with bearings for blocks E, provided at one end withsockets, into which the ends of the spindles E are secured by means 8 ofplates f, that fit in circumferential grooves in said shafts, that serveto hold them in their sockets, but permit them to freely turn therein;and the other ends of said blocks are provided with friction-rollers e,that are held be- 8 tween the cam-surface d of standard D and acam'plate, D, arranged in proper relation to each other, and bothsecured to the frame, so that the friction-roller blocks and spindleswill be moved longitudinally in their bear- 9( ings, alternately inopposite directions, to

gripe and release the work between the latheclutches or clutch-spindlepoints 6 s on the ends of the spindles E S.

From the pulley' A is belted a pulleyfln, upon 95 a shaft, M, adjustably secured within the frame as by being journaled within asocketfln, hav ing a standard or arm, N, which is adjustably held withina cross-bar of the frame 00, and secured by means of a set-screw, a, asshown. The shaftMis further j ournaled within a hanger, 0, by means of asocket, 0, and arm said arm reaching down through a frame-piece, P. Theshaft M carries upon its inner end, rigidly, a wheel or pulley, Q, whichacts frictionally upon a pulley, q, upon ashaft, Q. This shaft Q isadjustable at one end by means of asocket, 1", having an arm, V, whichoperates within the frame P, and is held at any point desired by meansof a set-screw, 1, while at the other end it is hung within a sockethaving a similar arm, which is held adjustably in the frame 00 by meansof the set-screw r By this means the shafts, with their pulleys andbelts, may be adjusted in their frames and with each other to take uplost motion and have greater frictional contact with each other.

Upon the shaft Q are hung two pulleys, the former, Q being belted to thepulleys 6 upon the spindles E, and the latter, Q being belted to similarpulleys, s, secured to the spindles S, and arranged between the threearmed frames S.

Upon the outer end of the shaft Q, is secured a pulley, T, which isbelted to a smaller pulley, a, hung upon standards 1, rigidly secured tothe back plate of the frame :20, and upon a shaft, U, carrying agang-saw, U.

Upon the shaft B is rigidly secured a gear,

2, which meshes with a pinion, 3, upon a shaft,

4, journaled within the frame, and carrying a disk, 5, having pins 6,and also carrying a pair of three-armed plates, 7.

Passing transversely through the frameplates at is a bar, I, having ashoulder,t', against whichthe pins 6 operate, and to which is secured arod, 1', which bears against the constant force of the spring 1 upon theopposite side of the frame.

In journals 7c is loosely hung a rock-shaft, K, having a crank-lever, K,which is secured to the rod I, and rigid upon said rock-shaft K is athrower, L, which operates within .the chute L beneath a hopper, G, andhaving a way, G, which leads to the arms of the plates 7 7 upon theshaft 4.

Adjustably secured within the frame W is a planing-knife, w, and betweensaid knife and the shaft B is an inclined chute, W into which the workis deposited by the withdrawal of the spindles therefrom when the workhasv been finished. I

The shaft to of the power-pulley transmits a rapid motion to the shaft Bby means of the pulleys A and B, as above described, and an intermittentretarded motion by means of an elastic pulley, A upon the shaft a and apulley,B of peculiar construction, upon the shaft B. The pulley B hasformed upon its periphery three projecting ribs or enlargements, b b I),the faces of which are truly turned to be concentric with the shaft B.The projections b are placed at equal distances apart around the pulley,and are arranged relatively to the arms of the plates F F S and to theknife and saw blades, so that the said projections will come in contactwith the driving-pulley A to retard the speed of the shaft B and thespindles E S when the said spindles are opposite the cutters and thework isbeing operated upon by them, the pulleys B and A slipping uponeach other, when the ridges b and pulley A are'in contact, by reason ofthe elastic seat a giving to the bearing of the shaft of the pulley AWhen the projections have lost contact with the pulley A the shaft Bwill be driven by the pulleys A and B at an accelerated speed, and thespindles E S will be rapidly carried from the saws to the knife, or fromone operative portion to another. The triangular arrangement of thespindlesE S with the cutting-knives is such that when the work is beingoperated upon two of the spindles will be in ahorizontal plane and thethird will be immediately or centrally above them, and the belts thatcommunicate motion to their pulleys will be stretched to their greatesttension while the work is being done and when the greatest power isrequired.

The blocks E have rectangular side; and slide freely in their bearingsin plate F, and their rollers e are held in place therein by screw-bolts0 the heads of which project some distance from the blocks E, and arecaught by the cam-blade D, that passes between them and the frame F anddraws the rollers, with their blocks and shafts, in toward the plate I),so that they will be acted upon by the cam-face (1, Fig. at, thereof, togripe and release the work. I

The width of the hopper G and the movement of the lever L are such as toconform to the size of the blanks to be turned, so that when the leveris withdrawn from beneath the hopper a single block only will fallopposite the lateral opening to the guide-plates g g, and when the leveris pushed beneath the hopper the block will be forced up between thespring guide-plates a sufficient distance to be in position to be caughtbetween the arms of the plates 7 7 and placed centrally in the line ofrotation of the clutches of spindles E S, to be caught by them as theypass and be carried to the saws.

The saw-arbor U is supported upon arms 1 rigidly secured to the rearportion of the frame, and may be adjusted toward or from the shaft B andits spindles E S, to suit the size of the work, by means of nuts to aupon the screwthreaded shanks of the bearing-blocks a, the said nutsbeing arranged upon opposite sides of the arms 1. The saw blades may beremoved from the arbor by unscrewing the nut a and other intermediatewashers of different sizes may be substituted therefor, in a well knownmanner, to 'suit the outline of the work to be turned.

1n the operation of this invention blocks of proper size are fed intothe hopper G, and, reaching the chute L, they are automatically pushedor forced forward to the three-armed pick-up plates 7, and the action ofthe recip IIO . will be pinched by the holding ends of thelathe-spindles as soon as it leaves the chute L. The block then receivesfrom the pulleys Q Q, of equal size, upon the shaft Q a rotating motion,which carries it to the rotating gang-saws U, which, being operated bythe multiplying-pulleys u T, acquire a suflicient force to give theblock of unequal circumference an approximately true but rough exterior.It will be understood that the lathe-chucks or holding-points arerevolving at a multiplied speed, and that the gang-saws operate andrevolve in an opposite direction, which gives a proper speed to the sawsupon the surface of the revolving blocks. From the saws the frames F S"and the revolving chucks or holders 8 e carry the blocks thus rounded tothe beveled plane W, which plane gives said blocks a smooth exterior,and thereafter, the blocks striking the chute W W they drop through theframe, and may be removed at will.

It will thus be seen that the power derived from the pulleyA by frictionand otherwise operates not only the revolving gang-saw U, but thatitdrives, by the lever L, the blocks forward to the lathe-holding ends,and that the ends are engaged automaticallyto register perfectly bymeans ofthe cams D d, and that the pulleys Q Q and pulleys s 0 upon theshafts E S serve to give the block or blank a multiplied revolvingmotion, and that the same power not only receives the rough blank andfeeds it to the chucks, but the mechanism is such that the chucksoperate to grasp it, and, after being carried by the revolution of theshaft B, it is rounded by means of the gangsaws and carried to the planeW, where it is smoothed and afterward discharged through the chute W W.

Having described our invention, What We claim, and desire to secure byLetters Patent, 1s-

1. In a compound lathe for turning a numher of articles at the sangetime, the combination of the shafts a B, pulleys A B A, the

pulleys A and B being arranged to slip upon each other, and the pulley Bprovided with projections b, a series of revolving spindles secured toshaft B, and cutters secured to a suitable rest and arranged relativelyto the projections b, substantially as and for the purpose described.

r 2. In a lathe, the combination of the frame, the revolving shaft, aseries of independently revolving and sliding spindles connectedtherewith, the vibrating feed-lever connected by intermediate mechanismwith the lathe-shaft,

and the pick-up plates connected with said' shaft and arrangedto-accurately register with the movements of the revolving spindles andfeed-lever, substantially as and for the purposes specified.

3. In a lathe, the combination of the shaft B, with its revolvingspindles, the shaft 4, the gear-wheels 2 3, the disk 5, with itsprojecting pins, the spring-bar I, rock-shaft K, feed-lever L, andfeed-hopper, combined and arranged substantially as and for the purposedescribed. In testimony that we claim the foregoing we have hereunto setour hands and seals this 31st day of August, 1880.

JAMES 'B. SHERMAN. [L. 5.] LOREN D. PHELPS. lL.

Witnesses:

CHARLES S. MARTIN, J os. H. LEFEBRE.

